Back to all

What Is an EGR Valve? (EGR Valve Service)

July 14, 2024

If you've ever felt your vehicle hesitate, go, then hesitate again, you might think there's something wrong with the transmission.  After all, it's not moving smoothly  down the road.  But there are plenty of malfunctions that can cause those symptoms, one of them being something you may have never heard of: the EGR valve.

EGR stands for Exhaust Gas Recirculation. It's a system that channels small amounts of exhaust back into the engine to cool down the cylinders and reduce polluting gases.  Those include nitrogen oxides that can cause smog. The EGR valve regulates how much of the vehicle's exhaust gas is recirculated. After years and long distances traveled, that valve can get clogged or fail. Sometimes the EGR valve can stick open.  When the EGR valve isn't working properly, your vehicle can start releasing those nitrogen oxides and pollute the air.

The symptoms of a malfunctioning EGR valve include:

  • Engine losing power
  • Engine idling roughly
  • Pinging and knocking sounds in the engine
  • Stalling and hesitation
  • Fuel economy decreasing
  • Check Engine light illuminated

 

Depending on its condition, the EGR valve can be cleaned or it may need to be replaced.  Consult with your service advisor to see what options are recommended to you.

The EGR system is part of your vehicle's pollution and emissions control equipment. If you care about keeping our planet's atmosphere clean, you'll want to make sure it's doing its job—for everyone's benefit.

Tuffy Toledo
5154 Monroe Street
Toledo, OH 43623
4198417633
http://www.tuffytoledo.com

More articles from Tuffy Toledo (Monroe St)

Automotive Tips from Tuffy Toledo: Air Conditioning Inspection

May 17, 2026

Most auto manufacturers recommend an interval for an air conditioning system inspection. The inspection uncovers leaks, worn hoses and assesses the condition of the other components.Environmental laws in some around Toledo require leaks to be repaired before refrigerant can be added. Also some pa... More

Watching Your Check Engine Light

May 10, 2026

Did you know that most of the cars driving around Toledo, OH, carry more computer power than the Apollo 121 Lunar Module that landed on the moon in 1969?New cars sold in the Toledo area have as many as 12 networked computers and over five miles (eight kilometers) of wiring. In fact, for the las... More

Automotive Tips from Tuffy Toledo: Wiper Blade Options

May 3, 2026

Wiper blades are critically important to Toledo drivers for good driving visibility and safety. When its time to replace your wiper blades, there are a number of different wiper blade designs and grades. Toledo drivers should always use at least the design or grade that came with their vehicle. ... More